EP3551915A1 - Vanne de dérivation et furet équipé d'une vanne de dérivation - Google Patents

Vanne de dérivation et furet équipé d'une vanne de dérivation

Info

Publication number
EP3551915A1
EP3551915A1 EP17818076.6A EP17818076A EP3551915A1 EP 3551915 A1 EP3551915 A1 EP 3551915A1 EP 17818076 A EP17818076 A EP 17818076A EP 3551915 A1 EP3551915 A1 EP 3551915A1
Authority
EP
European Patent Office
Prior art keywords
bypass valve
piston
bypass
pig
storage means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17818076.6A
Other languages
German (de)
English (en)
Other versions
EP3551915B1 (fr
Inventor
Wilhelm Voß
Heiner KRALLMANN
Nico HEILE
Rene BREMKE
Daniel SCHNEKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosen Swiss AG
Original Assignee
Rosen Swiss AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosen Swiss AG filed Critical Rosen Swiss AG
Publication of EP3551915A1 publication Critical patent/EP3551915A1/fr
Application granted granted Critical
Publication of EP3551915B1 publication Critical patent/EP3551915B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0551—Control mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup shaped pigs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
    • B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/10—Treating the inside of pipes
    • F16L2101/12—Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Definitions

  • the present invention relates to a bypass valve for an inspection and / or makesmolch which is to be moved through a medium-flown pipe, wherein the bypass valve comprises a flow-profiled interior, in which a longitudinal direction of the valve via a Force storage means pressure-responsively movable piston is arranged, which is movable between a first, a bypass for the medium permitting open position of the valve and a second, the bypass at least substantially occlusive position.
  • pigs designed as steel bodies with different hard polyurethane discs or polyurethane sleeves have proven to be the most effective and flexible.
  • the pig with the medium to be transported is driven through the pipe.
  • the cleaning pig for example, pushes out deposit material that comes with the gas from the wellbore and deposits in the conduit.
  • the cleaning performance or quality of the piping data taken during an inspection decreases rapidly, which can be particularly problematic in gas lines where gas is forced through the pipeline at high speed.
  • an object according to the preamble of claim 1 is known from US 2010/0170535 A1, in which a piston during the insertion of the pig in the Pipeline and on the other hand during a journey through the pipeline between an open position and a substantially closing the bypass closing closed position can change almost instantaneously. Before the run can be changed by adjusting an energy storage means the force exerted by this on the piston force. The pig can thus be adapted to a small extent to the pipe conditions.
  • the piston starting from the first position via the second position in the same direction, can be further transferred into a maximum position that opens the bypass again. It is understood that the flow cross-section released in the maximum position is significantly smaller than the free flow cross-section present in the first position and is still significantly larger than the cross-section present in the closed position or second position of the piston. Any free cross section for a leakage current is only to prevent sticking of the piston.
  • the differential pressure between the pipe sections in front of and behind the pig or the corresponding bypass Valve extreme and the piston is at concern a preferably adjustable opening pressure of at least 5, preferably at least 7 or 8 bar and up to 14 bar in the maximum position, so that the bypass is opened again and the maximum pressure is reduced. This ensures the integrity of the system and prevents the total shutdown of the pipeline in case of a pig stuck.
  • the piston in an area of the interior is preferably designed for the pressure-dependent assumption of intermediate positions between the first and the second position, in particular in a drive pressure range between 0.01 and 0.5, in particular between 0.02 and 0.4 bar. to allow a pressure-controlled volume flow through the bypass valve.
  • the piston is thus preferably initially in an open position, further forward with greater differential pressure then in a middle position in an at least substantially closed position and then further forward from a critical opening pressure in a maximum position , which allows a necessary under extreme conditions current through the bypass valve.
  • the piston is located with its maximum cross-sectional area in the maximum position in a widened with respect to a flow direction or forward displaced widened region of the interior of the bypass valve.
  • the flow profile of the interior and / or the profile of the piston is optimized in terms of flow in such a way that at least 50% of the flow rate profile of the piston is pressure-controlled for a not only substantially binary (open), but in particular dependent on the applied pressure Drive pressure range of the volume flow passed through the bypass valve does not change by more than 60%.
  • the form required for this purpose can be found, for example, for each bypass valve using calculation methods based on empirical observations and thus be able to be defined as a function of the respective pipe conditions and media used for the particular bypass valve used. In such a pressure-controlled actuation of the bypass valve, the pig remains longer in the desired speed range.
  • the profile of the interior or the interior of the valve initially tapers uniformly, in order then to constrict significantly more in the transition region to a middle valve region. Subsequently, an interior space with constant inner diameter is present, with then the interior again expands again with a particular stronger absolute slope than in the tapered area. This increased degree of expansion is particularly important for the sudden It makes sense to avoid the risk of damaging the pig / bypass valve or the pipeline, especially in the case of almost incompressible media.
  • the tapering and widening areas are designed to be optimized in terms of flow in such a way that as laminar a flow as possible is generated.
  • the piston profile is also such ajar to the tapered portion that changes with increasing path in the longitudinal direction of the present for a flow free cross section to an extent that allows a constant volume flow as possible depending on the applied pressure.
  • the bypass is large enough and occupies up to 25% of the line cross-section to achieve a significant speed reduction.
  • the passage space in the valve has thus been adapted in such a way that the bypass allows the volume flow to be kept constant over a wide range.
  • the working range of the bypass valve can be adapted by changing the energy storage device or means.
  • the construction is comparatively mechanically simple and secure if the piston has a hollow rod region in which the force-storing device is at least partially arranged and guided over a central bolt.
  • the assumption of the maximum position against the change in particular the compression of a second force storage means and / or after the pressure-dependent release of an additional piston working path.
  • force storage means a practical over-pressure circuit of the bypass valve can be achieved, which can be designed according to the desired or existing conditions and line conditions by using, for example, springs or gas cylinders as power storage means.
  • the two force storage means are designed in such a way that, starting from the closed position, the second force-storing means compresses to one with the maximum position more strongly in the longitudinal direction than the first force-storing means.
  • the first force-storing means may be a compressed spring, which is no longer or only minimally compressible, while the further, second force-storing means can only be significantly compressed in the longitudinal direction when the desired opening pressure is applied.
  • the second force-storing means may be a plurality of disk springs arranged one behind the other in the longitudinal direction, whose spring constants are significantly greater than those of a spiral spring used in advance for normal operation of the bypass valve.
  • the bypass valve in the middle region can be made shorter and the design of the bypass valve can be better adapted to the respective boundary conditions.
  • the two force-storing means are advantageously arranged one behind the other and adjacent to one another, wherein the abutment against one another can also take place via insertion disks guided therebetween and preferably via a central bolt.
  • the object stated in the introduction is achieved both by a pig, in which the bypass valve described above or below is arranged in a central body of the pig, as well as by a pig for inspection and / or cleaning of pipelines, in which the central body is formed by the outside preferably hollow cylindrical bypass valve at least with.
  • FIG. 2 shows the object according to FIG. 1 in a front view
  • FIG. 3 shows the object according to FIG. 2 in a section along AA
  • Fig. 5 is a flow-pressure diagram of the article according to the invention according to FIGS. 4 a) to c).
  • a cleaning pig 1 according to FIG. 1 comprises a central body 2, on which cuffs 4 fastened via flanges 3 are arranged. These are used to clean a pipeline.
  • the central body 2 is hollow and has a central pin 7 held over three inner spacers 6 (see Fig. 2).
  • a bypass valve 8 according to the invention in the hollow central body 2 is arranged.
  • the spacers 6 are part of the bypass valve. They hold the central pin 7, which serves to guide a piston 1 1 and two force storage means 12, 13.
  • the force storage means 12 is partially in a hollow rod area arranged a piston rod portion 14 and formed as a spiral spring.
  • the further force storage means 13 comprises a plurality of mutually arranged disc springs 16, which are arranged in hollow cylindrical shells 17 which can be moved against each other.
  • the hollow cylinder shell 17, the first force storage means is arranged so that the two force storage means in the longitudinal direction F, which also corresponds to the general flow direction, successively abut each other.
  • the inspection pig 1 has an inflow region 18 and an outflow region 19, through which the medium can enter the bypass valve 8 at one end and into the bypass at the other end when it flows out of the valve 8.
  • the piston 11 is in a first open position, in which a maximum flow through the bypass valve 8 is possible.
  • This position has the piston 1 1 in a in the inventive embodiment of FIG. 4 a), wherein arrows 21 represent the flow direction through the bypass valve 8.
  • the profile of the interior is indicated by the edges 22.
  • this area A the flow profile of the interior and the profile of the piston is designed to be flow-optimized in such a way that in at least 50% of the drive pressure range of preferably 0.02 to 0.4 bar the volume flow passed through the bypass valve 8 does not change by more than 60% (see Fig. 5).
  • the range A for the bypass valve is the working range in a pressure range up to 0.4 bar.
  • the area B which is shown with the associated piston position in FIG. 4 b), represents a working range of preferably 0.4 to 8 bar. Hatched, the piston 11 is in an intermediate position, in which the piston 11 is pressure-regulated in the longitudinal direction F is shifted, that the volume flow of the curve shown in FIG. 5 results.
  • the end of the bypass valve 1 a working pressure or drive or just pressure of more than 8 bar, so that the disc springs 16 of the further force storage means 13th be compressed and the piston 1 1 is transferred to the maximum position.
  • the hollow region formed by the region 14 of the piston rod can be designed in the longitudinal direction F in such a way that it supports the spiral spring 12 in FIG its maximum longitudinally compressed position exactly absorbs, so that the right end of the portion 14 of the piston rod flush with the in Fig. 4 c) right end of the coil spring 12 and thus push both ends on the vertical part of the hollow cylinder shell 17, and thus compressing the further force storage means 13.
  • the pressure applied to the pig 1 from the rear is shown on the X-axis and the volume flow resulting therefrom is shown on the Y-axis. Visible is formed over a relatively large pressure range of the flow comparatively plateau-like, so as to give a constant as possible speed of the pig or the pig does not reach in critical for cleaning or inspection speed ranges.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In General (AREA)
  • Details Of Valves (AREA)

Abstract

L'invention concerne une vanne de dérivation pour un furet d'inspection et/ou de nettoyage qui doit être déplacé à travers une conduite dans laquelle s'écoule un fluide. La vanne de dérivation (8) comporte un espace intérieur pourvu d'un profilé d'écoulement dans lequel est disposé un piston (11) qui peut être déplacé en function de la pression par un moyen d'accumulation de force (12) dans la direction longitudinale de la vanne de dérivation. Ledit piston (11) est mobile entre une première position ouverte de la vanne de dérivation, qui permet une dérivation du fluide, et une deuxième position qui ferme au moins sensiblement la dérivation. À partir de la première position, le piston (11) peut poursuivre sa course au-delà de la deuxième position dans la même direction jusqu'à une position maximale qui ouvre de nouveau la dérivation. L'invention concerne également un furet destiné à l'inspection et/ou au nettoyage de conduites.
EP17818076.6A 2016-12-08 2017-12-05 Vanne de dérivation et furet équipé d'une vanne de dérivation Active EP3551915B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016106843.6U DE202016106843U1 (de) 2016-12-08 2016-12-08 Bypass-Ventil und Molch mit einem Bypass-Ventil
PCT/EP2017/081565 WO2018104327A1 (fr) 2016-12-08 2017-12-05 Vanne de dérivation et furet équipé d'une vanne de dérivation

Publications (2)

Publication Number Publication Date
EP3551915A1 true EP3551915A1 (fr) 2019-10-16
EP3551915B1 EP3551915B1 (fr) 2021-08-04

Family

ID=58054917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17818076.6A Active EP3551915B1 (fr) 2016-12-08 2017-12-05 Vanne de dérivation et furet équipé d'une vanne de dérivation

Country Status (6)

Country Link
US (1) US11898649B2 (fr)
EP (1) EP3551915B1 (fr)
AU (1) AU2017373641B2 (fr)
CA (1) CA3046144C (fr)
DE (1) DE202016106843U1 (fr)
WO (1) WO2018104327A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108126961B (zh) * 2017-12-19 2020-07-07 长春理工大学 一种自取能管道内壁清洗机器人
US10975969B2 (en) * 2018-09-28 2021-04-13 Hamilton Sundstrand Corporation Three-position poppet valve
DE102019113382A1 (de) * 2019-05-20 2020-11-26 Rosen Swiss Ag Dichtungselement für einen Rohrleitungsmolch
CN112173723B (zh) * 2020-10-30 2022-03-11 河南工业大学 一种远程气力输送管道清管方法
CN114432993B (zh) * 2022-01-25 2024-01-30 浙江阿尔法化工科技有限公司 一种甲基四氢苯酐的合成工艺及合成设备
USD1119125S1 (en) * 2023-06-09 2026-03-17 Vdt Pipeline Integrity Solutions Private Limited Cleaning pig

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860356A (en) * 1957-06-17 1958-11-18 Pipe Linings Inc Pipe-cleaning machine
US8052801B2 (en) 2009-01-08 2011-11-08 Tdw Delaware, Inc. Pipeline pig launch pin and retraction system
EP2981687B1 (fr) * 2013-03-31 2019-10-23 Jacobs Vehicle Systems, Inc. Commande du mouvement d'une partie mobile
US9810365B2 (en) * 2014-02-24 2017-11-07 Saudi Arabian Oil Company Variable speed pipeline pig with internal flow cavity

Also Published As

Publication number Publication date
CA3046144C (fr) 2022-06-21
US11898649B2 (en) 2024-02-13
EP3551915B1 (fr) 2021-08-04
US20200063879A1 (en) 2020-02-27
CA3046144A1 (fr) 2018-06-14
DE202016106843U1 (de) 2017-01-31
AU2017373641B2 (en) 2021-01-28
WO2018104327A1 (fr) 2018-06-14
AU2017373641A1 (en) 2019-06-13

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